CrossFire-X different ussages

lorenzertlmaier · July 7, 2015

Hey guys,

Let me start right away: I have two Radeon HD 5770's paired with an i5 650 and 8 Gigs of RAM (I know that's some old stuff) in my System and i fired up CoD Black Ops II (no hate please haha). Now the problem: One GPU is working at like 70% usage, the other at 50%isch. I think my CPU is bottlenecking but why don't both GPU's run at the same speed then?

samcool55 · July 7, 2015

Well that's because crossfire isn't perfect, i saw similar things with my old crossfire setup, it's normal don't worry.

July 7, 2015

Seems totally normal and doesn't necessarily have something to do with your CPU either. Some games are not perfectly optimized for multi-GPU systems and will not see 100% use on both cards. If both cards stay at or above 70% that's already fairly decent scaling. Seeing both cards pinned at 99% usage is fairly rare, but happens in BF4, many unreal-engine games and Tomb Raider 2013 (at least for me).